<!DOCTYPE html>
<html>

<head>
  <title>Canvas subdom mutation</title>

  <link rel="stylesheet" type="text/css"
        href="chrome://mochikit/content/tests/SimpleTest/test.css" />

  <script type="application/javascript"
          src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <script type="application/javascript"
          src="../common.js"></script>
  <script type="application/javascript"
          src="../role.js"></script>
  <script type="application/javascript"
          src="../events.js"></script>

  <script type="application/javascript">

    ////////////////////////////////////////////////////////////////////////////
    // Invokers

    function addSubtree(aID)
    {
      this.node = getNode(aID);

      this.eventSeq = [
        new invokerChecker(EVENT_SHOW, this.node)
      ];

      this.invoke = function addSubtree_invoke()
      {
        // ensure we start with no subtree
        testAccessibleTree("canvas", { CANVAS: [] });
        getNode("dialog").style.display = "block";
      }

      this.finalCheck = function addSubtree_finalCheck() {
        testAccessibleTree("dialog", { DIALOG: [] });
      }

      this.getID = function addSubtree_getID()
      {
        return "show canvas subdom";
      }
    }

    ////////////////////////////////////////////////////////////////////////////
    // Test

    //gA11yEventDumpID = "eventdump"; // debug stuff
    //gA11yEventDumpToConsole = true;

    var gQueue = null;

    function doTest()
    {
      gQueue = new eventQueue();

      // make the subdom come alive!
      gQueue.push(new addSubtree("dialog"));

      gQueue.invoke(); // SimpleTest.finish() will be called in the end
    }

    SimpleTest.waitForExplicitFinish();
    addA11yLoadEvent(doTest);
  </script>
</head>
<body>

  <a target="_blank"
     title="Expose content in Canvas element"
     href="https://bugzilla.mozilla.org/show_bug.cgi?id=495912">
    Mozilla Bug 495912
  </a>

  <p id="display"></p>
  <div id="content" style="display: none"></div>
  <pre id="test">
  </pre>

  <canvas id="canvas">
    <div id="dialog" role="dialog" style="display: none;">
    </div>
  </canvas>

  <div id="eventdump"></div>
</body>
</html>
